Gate Tunable Supercurrent in Josephson Junctions Based on Bi2Te3 Topological Insulator Thin Films

• 作者: Wei-Xiong Wu Yang Feng Yun-He Bai Yu-Ying Jiang Zong-Wei Gao Yuan-Zhao Li Jian-Li Luan Heng-An Zhou Wan-Jun Jiang Xiao Feng Jin-Song Zhang Hao Zhang Ke He Xu-Cun Ma Qi-Kun Xue Ya-Yu Wang
• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2021,（3）
• 所属期刊栏目: CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL,MAGNETIC, AND OPTICAL PROPERTIES
• 页码范围: 89-94
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/0256-307X/38/3/037402

摘要

We report transport measurements on Josephson junctions consisting of Bi2Te3 topological insulator (TI) thinfilms contacted by superconducting Nb electrodes. For a device with junction length L = 134 nm, the critical supercurrent Ic can be modulated by an electrical gate which tunes the carrier type and density of the TI film.